项目来源

国家重点研发计划(NKRD)

项目主持人

杨鲲

项目受资助机构

天津大学

立项年度

2018

立项时间

未公开

项目编号

2018YFF0212201

研究期限

未知 / 未知

项目级别

国家级

受资助金额

103.00万元

学科

国家质量基础的共性技术研究与应用

学科代码

未公开

基金类别

“国家质量基础的共性技术研究与应用”重点专项

关键词

含沙量 ; 溯源 ; 标准装置 ; Sediment concentration ; Traceability ; Standard device

参与者

李一博；韩鸿胜

参与机构

长江水利委员会长江科学院；交通运输部天津水运工程科学研究所

项目标书摘要：高精度水体含沙量测量仪是进行水体研究的重要设备。目前，我国高精度含沙量测量仪大量依赖进口，且国内外尚没有完善的高精度含沙量设备计量检测方法，难以对含沙量测量设备进行规范有效的检定及校准。因此，高精度含沙量设备计量检测方法及溯源技术的研究既可以填补国内含沙量测量仪计量领域的空白，同时也会带来巨大的社会效益和经济效益。本课题通过配置高精度水体悬沙场，利用悬沙场作为标准器计量含沙量的测量仪，建立稳定悬移质泥沙浓度场的数学模型，提出了含沙量测量仪计量校准方法，并研制了格栅式和机械搅拌式含沙量测量仪计量标准装置，提高了含沙量测量仪计量校准能力。实验表明，在含沙量浓度0.1 千克每立方米到30千克每立方米范围之内，当前含沙量测量仪计量标准装置样机所构建悬沙场的相对标准不确定度小于1%,能够满足大多数含沙量测量仪的计量需求。

Application Abstract: High-precision sand content measuring instrument is an important equipment for water body research.At present,my country's high-precision sand content measuring instrument relies heavily on imports,and there is no comprehensive high-precision sand content measurement method at home and abroad,so it is difficult to carry out standardized and effective verification and calibration for sand content measurement equipment.Therefore,the research of high-precision sand content equipment measurement,detection methods and traceability technology can not only fill the gap in the field of domestic sand content measurement instruments,but also bring huge social and economic benefits.In this project,by configuring a high-precision water body suspended sand field,the suspended sand field is used as a standard instrument to measure the sediment concentration.A mathematical model of the stable suspended sediment concentration field is established,and the test and calibration method of the sediment concentration measuring instrument is proposed.The grid type and mechanical stirring type sand content measuring instrument measurement standard devices are developed,which improve the measurement and calibration ability of the sand content measuring instrument.Experiments have shown that within the range of 0.1 kg/m3 to 30 kg/m3 of sand content,the relative standard uncertainty of the suspended sand field constructed by the current sand content meter measurement standard device prototype is less than 1%,which can meet measurement needs of most of the sand content measurement instrument.

项目受资助省

天津市